ASTM D8302-20

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8302 − 20
Standard Test Method for
Determination of Cycloparaffin Content in Saturated ATJ-
1
SPK Jet Fuel Gas Chromatography
This standard is issued under the fixed designation D8302; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D7566 Specification for Aviation Turbine Fuel Containing
Synthesized Hydrocarbons
1.1 This test method covers the determination of cyclopar-
D7372 Guide for Analysis and Interpretation of Proficiency
affin content by gas chromatography of the saturatedATJ-SPK
Test Program Results
jet fuel as specified in Specification D7566, section A5.4.1,
E355 Practice for Gas Chromatography Terms and Relation-
derived from isobutanol and follows the fuel fingerprint
ships
described in the Annex of this test method.
E594 Practice for Testing Flame Ionization Detectors Used
1.2 The working range for the test method is for cyclopar-
in Gas or Supercritical Fluid Chromatography
affin content in the range of 1 % to 15 % by mass.
3. Terminology
1.3 The test method has an interim precision and will be
updated once an extended ILS is conducted.
3.1 This test method references common gas chromato-
graphic procedures, terms, and relationships which may be
1.4 This standard does not purport to address all of the
found in Practices E355 and E594.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.2 Definitions:
priate safety, health, and environmental practices and deter-
3.2.1 paraffıns, n—saturated, non-cyclic hydrocarbons.
mine the applicability of regulatory limitations prior to use.
3.3 Abbreviations:
1.5 This international standard was developed in accor-
3.3.1 ATJ-SPK—alcohol-to-jet synthetic paraffinic kerosene
dance with internationally recognized principles on standard-
3.3.2 ASTM—American Society for Testing and Materials
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.3.3 FID—flame ionization detector
mendations issued by the World Trade Organization Technical
3.3.4 GC/MS—gas chromatograph mass spectrometer
Barriers to Trade (TBT) Committee.
3.3.5 IPC—identified paraffin concentration
3.3.6 m/z—molecular mass to charge ratio of an ion
2. Referenced Documents
2
3.3.7 PTP—proficiency testing programs
2.1 ASTM Standards:
D2425 Test Method for Hydrocarbon Types in Middle Dis-
3.3.8 QC—quality control
tillates by Mass Spectrometry
4. Summary of Test Method
D6299 Practice for Applying Statistical Quality Assurance
and Control Charting Techniques to Evaluate Analytical
4.1 A representative aliquot of ATJ-SPK jet fuel is intro-
Measurement System Performance
duced into a gas chromatograph equipped with a 5 % phenyl-
D6300 Practice for Determination of Precision and Bias
methylpolysiloxane bonded phase capillary column. Carrier
Data for Use in Test Methods for Petroleum Products,
gas transports the vaporized aliquot through the column where
Liquid Fuels, and Lubricants
the components are separated by the chromatographic process.
Components are sensed by a flame ionization detector as they
elute from the column in boiling point order. The detector
1
This test method is under the jurisdiction of ASTM Committee D02 on
signal is processed by an electronic data acquisition system.
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
The paraffins are identified by comparing their retention times
Subcommittee D02.04 on Hydrocarbon Analysis.
to the ones reported in the method. Identification of the
Current edition approved July 1, 2020. Published July 2020. DOI: 10.1520/
D8302-20.
paraffinshasbeenpreviouslyperformedbyanalyzingreference
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
samples and standards by mass spectrometry under conditions
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
as indicated in the Annex. The concentrations of all compo-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nents are determined in mass percent area by normalization of
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D8302 − 20
the peak areas. The cycloparaffin content is determined as 6.3 Column—This test method utilizes a fused silica open
100 % pe
...